- How do I do bibliography in Context, that is more than just bibtex? In the manual there is no explanation of this. Source code doesn't tell me much either...
- Are there any "packages" that provide bibliography support? (If yes - where is that place where I can search for packages?)
- Can I use biblatex in context?
You cannot use biblatex with ConTeXt.
ConTeXt uses bibtex as a backend, but it also includes some code, formerly known as the bib module, which allows to set up the bibliography. See the bib manual for more details. Bibliography support is not well tested in ConTeXt, though.
Although it has some rough edges and limitations, bibliography support is quite flexible in ConTeXt and you can change the appearance using TeX macros.
As others have mentioned, there's also the librarian package, which might be worth a try (I've never used it myself).